preprocessor/2884: cpp stringizing problem 2

[Markus F.X.J. Oberhumer]

>Number:         2884
>Category:       preprocessor
>Synopsis:       cpp 3.0 200010426 stringizing problem 2
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          rejects-legal
>Submitter-Id:   net
>Arrival-Date:   Sun May 20 11:46:01 PDT 2001
>Closed-Date:
>Last-Modified:
>Originator:     Markus F.X.J. Oberhumer <markus@oberhumer.com>
>Release:        3.0 20010426 (Debian prerelease) (Debian testing/unstable)
>Organization:
none
>Environment:
System: Linux laetitia 2.4.3 #1 Wed Apr 4 03:58:32 CEST 2001 i586 unknown
Architecture: i586

       =20
host: i386-pc-linux-gnu
build: i386-pc-linux-gnu
target: i386-pc-linux-gnu
configured with: ../src/configure -v
--enable-languages=3Dc,c++,java,f77,proto,objc --prefix=3D/usr
--infodir=3D/share/info --mandir=3D
/share/man --enable-shared --with-gnu-as --with-gnu-ld --with-system-zlib
--enable-long-long --enable-nls --without-x --without
-included-gettext --disable-checking --enable-threads=3Dposix
--enable-java-gc=3Dboehm --with-cpp-install-dir=3Dbin --enable-objc-gc=20
i386-linux
>Description:
        cpp 3.0 200010426 stringizing problem 2
>How-To-Repeat:
$ g++-3.0 -c -Werror bug03.cxx
bug03.cxx:21:5: pasting "Foo" and "::" does not give a valid preprocessing =
token
bug03.cxx:21:5: pasting "::" and "bar" does not give a valid preprocessing =
token

----------------------------------------

$ cat bug03.cxx
/* Markus F.X.J. Oberhumer <markus@oberhumer.com>
 * gcc 3.0 20010426 (Debian prerelease) bug report:
 *
 *   cpp stringizing problem (probably related to bug02, but note
 *   that there are no double "" in the error message here)
 */

/* concatenate */
#define CONCAT3(a,b,c)  a ## b ## c
/* expand and concatenate (by using one level of indirection) */
#define ECONCAT3(a,b,c) CONCAT3(a,b,c)

struct Foo
{
        int bar(void);
};

#define C               Foo
#define N(c)            ECONCAT3(c,::,bar)

int N(C) (void)         // Foo::bar
{
        return 0;
}
>Fix:
       =20

>Release-Note:
>Audit-Trail:
>Unformatted: